Boot mug



FIG. 1 is a right perspective view showing my new design;

FIG. 2 is a left perspective view showing my new design;

FIG. 3 is a right view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top view thereof. 

The ornamental design for a boot mug, as shown and described. 